Tokyo droht in 4 Tagen von einer Armee aus Gastrea überrant zu werden. Rentaro bekommt den Auftrag ein Team zusammenzustellen und sich der Gefahr anzunehmen.
Rentaro and Kisara decide to teach the Cursed Children in the Outer District themselves due to the tension created by the New Gastrea Law. However Seitenshi informs them of a recent Stage Four Gastrea attack on one of the Area's Varanium Monoliths and that in six days the creature's corrosive agent will dissolve the barrier and leave the Tokyo Area vulnerable to the Gastrea. Seitenshi then has Rentaro put together an adjuvant squad of civil officers for a mission to intercept the Gastrea invasion. The next day, while the tension from New Gastrea Law continues to escalate, Rentaro invites Tina to accompany him to recruit civil officers for the mission. They also encounter a blind Cursed Child begging to make ends meet and Rentaro warns her to stay out of the public for her own safety. Being the subject of envy from other civil officers, Rentaro has difficulty in recruiting and visits the Kitagari Civil Security Agency in an attempt to recruit the sibling duo, Promoter Tamaki Katagiri and Initiator Yuzuki Katagiri. After some bargaining disagreements though, the teams decide to spar, with Rentaro and Tina emerging victorious and gaining the Katagiri's aid. Finally, the mission to repel the impending Gastrea invasion begins that night.
Un gastrea géant s'en est pris à un monolithe qui ne tardera pas à s'effondrer, ouvrant la voie à des hordes de monstres qui déferleront bientôt sur la zone de Tokyo. Satomi est chargé par dame Seitenshi de former un groupe de miliciens pour contrer cette invasion.
Rentaro e Kisara decidono di insegnare alle Bambine Maledette nel Distretto Esterno. Tuttavia Seitenshi li informa di un recente attacco di un Gastrea di Fase Quattro a uno dei monoliti di dell'Area e che in sei giorni l'agente corrosivo della creatura dissolverà la barriera e lascerà l'Area di Tokyo vulnerabile ai Gastrea.
外周区で子供たちとの青空教室を楽しんでいた蓮太郎。そこに訪れた聖天子の口から聞かされたのは、モノリスが倒壊するという、信じ難い事実だった。バラニウムを侵食する力を持つステージⅣガストレア・アルデバラン。かつての大戦時にも猛威を振るったそれが、再び現れたのだ。聖天子の依頼で、東京エリアの命運をかけたガストレア迎撃作戦に参加することになった蓮太郎は、チームを組む仲間を探すために、ある民警を訪れる――。
가스트레아가 모노리스를 공격했다는 소식을 접한 렌타로. 모노리스가 붕괴되고 대체 모노리스가 완성될 때까지의 3일간, 2천 마리의 가스트레아가 도쿄 지역을 공격해 온다는 소식과 함께 세이텐시는 전투에 대비한 아쥬반트를 구성할 것을 렌타로에게 요청한다. 결국 처음으로 팀을 꾸려 전투에 참여하게 된 렌타로는 새로운 동료를 찾아 카타기리 타마키를 방문하는데.
Rentaro dispuso una primaria provisional para los niños para las niñas del distrito exterior, mientras disfrutaba impartir clases, Seitenshi aparece de sorpresa para informarle que uno de los monolitos está por ser destruido.
